Showerhead



FIG. 1 is a rear perspective view of a showerhead showing our new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a top plan view thereof.

The broken line showing of perforations is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a showerhead, as shown and described. 